import { fileURLToPath, URL } from 'node:url'

import { defineConfig } from 'vite'
import vue from '@vitejs/plugin-vue'
import vueDevTools from 'vite-plugin-vue-devtools'
import AutoImport from 'unplugin-auto-import/vite'
import Components from 'unplugin-vue-components/vite'
import { ElementPlusResolver } from 'unplugin-vue-components/resolvers'

// https://vite.dev/config/
export default defineConfig({
  define: {
    global: 'globalThis',
  },
  plugins: [
    vue(),
    vueDevTools(),
    AutoImport({
      resolvers: [ElementPlusResolver()],
    }),
    Components({
      resolvers: [ElementPlusResolver()],
    }),
  ],
  resolve: {
    alias: {
      '@': fileURLToPath(new URL('./src', import.meta.url))
    },
  },
  build: {
    rollupOptions: {
      output: {
        manualChunks: {
          // Split plotly into its own chunk - this is now redundant since we're using modular approach
          elementPlus: ['element-plus'],
          vueCore: ['vue', 'vue-router', 'pinia'],
        }
      }
    },
    chunkSizeWarningLimit: 1000 // Increase limit to account for plotly modules
  }
})
